package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import com.itheima.utils.DateUtils;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 报表操作
 */
@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;

    //获取会员数量统计数据
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        try{
            //动态获取过去1年的12个月，并封装到集合中
            List<String> months = new ArrayList<>();
            Calendar calendar = Calendar.getInstance();
            calendar.add(Calendar.MONTH,-12);//add方法用于计算
            for(int i = 0;i<12;i++){
                calendar.add(Calendar.MONTH,1);//add方法用于计算
                months.add(DateUtils.parseDate2String(calendar.getTime(),"yyyy.MM"));
            }
            //根据月份查询对应的会员数量
            List<Integer> memberCount = memberService.findMemberCountByMonths(months);

            Map<String,Object> data = new HashMap<>();
            data.put("months",months);
            data.put("memberCount",memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,data);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }


    //会员数量折线图数据--动态
    @RequestMapping("/getMemberReportByMonth")
    //添加@RequestBody
    public Result getMemberReportByMonth(@RequestBody List<String> month) {
        String startTime = month.get(0);
        String endTime = month.get(1);

        Map<String, Object> map = new HashMap<>();
        try {

            //计算动态的时间间隔
            List<String> months = DateUtils.getMonthBetween(startTime, endTime, "yyyy-MM");

            map.put("months", months);

            List<Integer> memberCount = memberService.findMemberCountByMonth(months);
            map.put("memberCount", memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }



  //套餐预约占比饼形图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {
        //使用模拟数据测试使用什么样的java对象转为饼形图所需的json数据格式
        Map<String, Object> data = new HashMap<>();
        try {
            List<Map<String, Object>> setmealCount = setmealService.findSetmealCount();
            data.put("setmealCount", setmealCount);

            List<String> setmealNames = new ArrayList<>();
            for (Map<String, Object> map : setmealCount) {
                String name = (String) map.get("name");//套餐名称
                setmealNames.add(name);
            }

            data.put("setmealNames", setmealNames);
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }


    //会员性别数量占比图
    @RequestMapping("/getMemberReportss")
    public Result getMemberReportss() {
        //存入map集合
        Map<String, Object> data = new HashMap<>();
        //异常处理
        try {
            List<Map<String, Object>> memberCount1 = memberService.findMemberCountByGender();

            data.put("memberCount1", memberCount1);
            List<String> list = new ArrayList<>();
            list.add("男");
            list.add("女");
            list.add("未知");

            data.put("name", list);
            data.put("value", memberCount1);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, data);//获取会员数据统计成功
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);//获取会员数据统计失败
        }
    }
    //会员年龄段数量占比图
    @RequestMapping("/getAgeReport")
    public Result getAgeReport() {
        //使用模拟数据测试使用什么样的java对象转为饼形图所需的json数据格式
        Map<String, Object> data = new HashMap<>();

        try {
            List<Map<String, Object>> ageCount = memberService.findMemberCount();
            data.put("ageCount", ageCount);

            List<String> ageNames = new ArrayList<>();

            for (Map<String, Object> map : ageCount) {
                String name = (String) map.get("name");//套餐名称
                ageNames.add(name);
            }
            data.put("ageNames", ageNames);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }
    @Reference
    private ReportService reportService;

    //运营数据统计
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        try {
            Map<String, Object> data = reportService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, data);
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReportData();
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";
            //基于提供的Excel模板文件在内存中创建一个Excel表格对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //使用输出流进行表格下载,基于浏览器作为客户端下载
            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
            excel.write(out);

            out.flush();
            out.close();
            excel.close();
            return null;
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
